<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>javascript</title>
    <script src="https://code.jquery.com/jquery-3.7.1.min.js"></script>
</head>
<body>
    <script>
        let a = 10;
        console.log(typeof a);
        let arr = [1,2,"caoshuai"];
        console.log(arr);
        let aa = function(){
            console.log("hello");
        }
        let c = function bb(x,y){
            let z = x+y;
            log(z);
            console.log("hello");
        }
        console.log(c);
        var student = {
            "name": "caoshuai",
            "age": 18,
            "sex": "man",
            "hobby": ["game","music","movie"],
            "say": function(){
                console.log("hello");
            }
        }
        
    </script>
</body>
</html>